/Engine/Plugins/Experimental/Mutable/Source/CustomizableObjectEditor/Classes/MuCOE/Nodes/CustomizableObjectNodeExternalPin.h
Return the linked Expose Pin node. Return nullptr if not set.
[UCustomizableObjectNodeExposePin](API\Plugins\CustomizableObjectEditor\MuCOE\Nodes\UCustomizableObjectNodeExposePin) * GetNodeExposePin() const